Grain-bin.



GRAIN BIN.

APPLIOATION FILED SEPT.22,1908.

Patented $6111 7, 1909 2 SHEETS-SHEET 1 Ehwentoz attain lvi ltngou 6 6G. M. BOLL. GRAIN BIN.

APPLICATION FILED SEPT. 22,1908.

933,617; Patented Sept. 7, 1909.

2 SHEETS-SHEET 2.

/ 61 I y 1/ M the construction of the door through which PATENT ()FFICE.

GEORGE M. BOLL, OF MOUNT HOPE, KANSAS.

GRAIN-BIN.

Specification of Letters Patent.

Application filed September 22, 1908. Serial No. 454,197.

To all whom it may concern: I

Be it known that I, Gnonon M. Born, a citizenof the United States,residing at Mount Hope, in the county of Sedgwick and State of Kansas,have invented certain new 3' and useful Improvements in Grain-Bins; andI do herebydeclare the following to be I a full, clear, and exactdescription of the invention, such as Will enable others skilled in theart 1 which it appertain's to make and use the same.

My invention relates to granaries or bins for the storage of grain andparticularly to the grain is removed.

It. has for its object to provide additional protection against theftand to preserve the grain in the. vicinity of the door against moistureand fire.

Another object is to strengthen the wall of the bin to oifsettheweakening caused by cutting away a part thereof to form the door way.

The invention also conten'iplates the con-. struction of the door insuch a manner and of such size as to permit of the passage of personstherethrough whereby the bin n'iay be used for other purposes when grainis not stored therein.

The invention consists of a double doo'r, the-outer one beingconstructed of heavy material and hinged to swing outwardly while theinner door is composed of sliding sections which are separablyremovable.- Adjustable truss bars are placed across the doorway betweenthe inner and outer doors.

The invention also consists in the features of cm 'truetion andcombinations of devices hereiii' ifter described and specified in theclaims.

in the acrannpanying drawing illustrating the preferred embodiment of myinvention: Figure l is an elevation of a circular metal bin providedwith a door constructed in accordance with my invention. Fig. 2 is abroken elevation showing the door on an cnlargcd scale. the outer doorbeing open. Fig. 2") is a broken elevation of a portion of the intcriorof the bin showing the slides holding the sections of the inner door.Fig

'l is a i i vertical sectional view on the line a of i Fig. 1. and Fig.5 is a horizontal sectional view on the line l/ I/ of Fig. 'l. Referringmore particularly to the draw- 5 mg,

the granary or bin 1 is consirncicll of i sheet metal in any suitablemanner. doorway or opening is cut in the walls of the bin of sufficientheight and width to permit persons to pass therethrough. Around theouter edge of said doorway there is secured a projecting frame 3con'iposed of angle irons riveted to the walls. Portions of the top andbottom angle irons are extended to one side to form hinge-lugs l. Theouter door 5 is constructed of a sheet metal plate (3 around the edgesof which are riveted iiiwardly extending angle irons 7. The top andbottom angle irons on the door are ex.- t'cnded on one side to formother hinge-lugs b which are secured to the lugs -'t of the door frameby pivot pins 5). The angleirons of the door are adapted to fit outsideof the angle irons ot the door frame. The angle iron on the side ot'thedoor next to the hingelugs is. cut away, as at 10, adjacent to said lugsto tit over the hinge-lugs the door frame when the door is closed. Thedoor should it the frame closely so as to be as near air tight aspossible and prevent the entrance of moisture or lire. Anysuitablelocking device may be employed for securing the door.

The sliding sections 11 composing the inner door are arranged invertical channelpieces [2 which are prel'erably riveted to the sides ofthe inner door frame. comprising angle irons 13 which are in turnriveted to the inner edge of the dooiwvay. Said angle irons are securedby the same rivets which fasten the angle irons composing the outer doorframe. A portion of each channelpiece at the top of the doorway is cutaway, as at 1%, to permit the-upper section to be removed inwardly.After the upper section is removed each of the other sections may beraised and taken out in turn through said out out portions. The uppersection is retained in place by havingits upper edge engage a groove ina channel or U-shaped iron 'l5 which is; constructed similarly to thelower parts oi? the channel-pieces and is fastened to the top angle ironof the inner door frame. The lower edge of the upper section is providedwith a pivoted latch 16 adapted to be turned down outside of the ltiXl'.lower section. When it is desired to l'tlllUYt said upper scction, thelatch released whereupon the lower edge of said sec 1 tion may be pushedinward and its upper edge a l'tcrward removed from the groove in the topchannel iron to. 'lhowall ol' the bin is strengthenedwhere Patentedtlcpt. 7, 1909. 7

. opposite parts'thereof to outer door frame and the doorway is cut byadjustable truss rods 17 which may. be placed at the desireddistancejapart. Each of said truss rods comprisestwo parts 18 which arehin ed to the opposite edges of the doorway and are connected by aturnbuckle 19. Said truss rods are arranged between the inner and outerdoors, the hinged parts being connected to loops or staples 20 which arepassed through and secured to the projecting portions of the angle ironsforming the inner and outer door frame. \Vhen the bin is partially orentirely emptied, the truss rods may be disconnected at the turnbuckle,allowing the fall down and hang ong the edges of the doorway asillustrated in dotted lines in Fig. 2.

I claim: i r

The combination, with the wall of a grain 'bin having'a doorwaytherein,'of an an inner door frame projecting respectively from theouter and I inner faces of said wall, a flanged outer door adapted toclose around the outer frame, said inner door frame being provided withgroovesat its sides, and a plurality of removable door sections arrangedin said grooves.-

2. The combination, with the wall of a grain bin having a doorwaytherein, of an outer door frame and an inner door'frame both comprisingangle irons secured by the same rivets to the outer and inner edges ofsaid doorway, an outer door adapted to close upon the outer frame, tothe lateral edges of the inner frame, and

channel-pieces,

1n presence of two witnesses.

' GEORGE; M. BOLL. lVitnesses T. A. BoLL,

J. F. J ORGENSEN.

channel-pieces secured 1 In testimony whereof, I afiix my signature,

aplurality of door-sections arranged in said

